Product detail:10-1200 pair: 0.4 mm, 10-800 pair: 0.6 mm, 10 - 400 pair: 0.8 mm.STEL-QA-K: 020.Copper conductor,foam-skin PE insulated, jelly filled, aluminium tape screened, double steel tape armouring, PE sheathed. Used as direct burial for distribution in exchange area and water protected telephone cable for local networks in moist or marshy regions. Can prevent the penetration and migration of water























